test/implicit-cache/SetOption.py

   1 #!/usr/bin/env python
   2 #
   3 # __COPYRIGHT__
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining
   6 # a copy of this software and associated documentation files (the
   7 # "Software"), to deal in the Software without restriction, including
   8 # without limitation the rights to use, copy, modify, merge, publish,
   9 # distribute, sublicense, and/or sell copies of the Software, and to
  10 # permit persons to whom the Software is furnished to do so, subject to
  11 # the following conditions:
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  13 # The above copyright notice and this permission notice shall be included
  14 # in all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  17 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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  19 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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  21 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 #
  24
  25 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  26
  27 """
  28 Verify that SetOption('implicit_cache', 1) actually enables implicit
  29 caching by detecting the case where implicit caching causes inaccurate
  30 builds:  a same-named file dropped into a directory earlier in the
  31 CPPPATH list will *not* be detected because we use what's in the cache.
  32 """
  33
  34 import TestSCons
  35
  36 test = TestSCons.TestSCons()
  37
  38 test.write('SConstruct', """
  39 DefaultEnvironment(tools=[])
  40 SetOption('implicit_cache', 1)
  41 env=Environment(CPPPATH=['i1', 'i2'])
  42 env.Object('foo.c')
  43 """)
  44
  45 test.subdir('i1')
  46 test.subdir('i2')
  47
  48 test.write('foo.c', """
  49 #include <foo.h>
  50
  51 void foo(void)
  52 {
  53     FOO_H_DEFINED
  54     ++x;  /* reference x */
  55 }
  56 """)
  57
  58 test.write('i2/foo.h', """
  59 #define FOO_H_DEFINED int x = 1;
  60 """)
  61
  62 test.run(arguments = '.')
  63
  64 test.write('i1/foo.h', """
  65 this line will cause a syntax error if it's included by a rebuild
  66 """)
  67
  68 test.up_to_date(arguments = '.')
  69
  70
  71 test.pass_test()
  72
  73 # Local Variables:
  74 # tab-width:4
  75 # indent-tabs-mode:nil
  76 # End:
  77 # vim: set expandtab tabstop=4 shiftwidth=4: